"Cool star planet-scape", by J. Pinfield, 2009, property of the RoPACS network at the University of Hertfordshire: A terrestrial planet orbits a cool red star. A small cratered moon is also seen in orbit around the planet. In its close orbit the planet is tidally locked to the star with the same hot side always in day light. The other side of the planet is cold, dark and icy. In between these two extremes lies the terminator region in which an ambient climate and liquid water have taken hold.